Anyone got any? I've got a 5.4 with what the build sheet says is a 4 speed automatic, tuned by baf in Texas, and currently out of commission. I love the van and don't care about "equity" on it, it's a work van. Hankeys given me some excellent insight, so now based on the research I've done, I'm looking at either a 6.2 or 7.3 gas. Any further insight on the fabrication needed would be appreciated.